92881891 has 2 divisors, whose sum is σ = 92881892. Its totient is φ = 92881890.

The previous prime is 92881787. The next prime is 92881903. The reversal of 92881891 is 19818829.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-92881891 is a prime.

It is not a weakly prime, because it can be changed into another prime (92881091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46440945 + 46440946.

It is an arithmetic number, because the mean of its divisors is an integer number (46440946).

Almost surely, 2^92881891 is an apocalyptic number.

92881891 is a deficient number, since it is larger than the sum of its proper divisors (1).

92881891 is an equidigital number, since it uses as much as digits as its factorization.

92881891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 46.

The square root of 92881891 is about 9637.5251491241. The cubic root of 92881891 is about 452.8736122580.

The spelling of 92881891 in words is "ninety-two million, eight hundred eighty-one thousand, eight hundred ninety-one".